Events from the year 1820 in China.

Incumbents Jiaqing Emperor (25th year)

Events April 1 — Benjamin Chew Wilcocks becomes Consul of the United States at the Port of CantonAmericans and Macao: Trade, Smuggling, and Diplomacy on the South China Coast edited by Paul A. Van Dyke September — Jiaqing Emperor died suddenly of unknown causes. Mianning inherited the throne at the age of 38, becoming the Daoguang Emperor. He became the first Qing emperor who was the eldest legitimate son of his father

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